Vendor OpenClaw source as Adolf fork baseline

Adolf is a fork/vendored clone of github.com/openclaw/openclaw (v2026.6.11),
free to diverge. Tree copied sans upstream .git; upstream remote added for
future syncs. Node pinned to 24 (.nvmrc); engines already require >=22.19.
Preserves docs/ARCHITECTURE.md.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LeqyaxJF2nbRXJtae2kNB2

docs/channels/synology-chat.md

@@ -0,0 +1,178 @@
+---
+summary: "Synology Chat webhook setup and OpenClaw config"
+read_when:
+  - Setting up Synology Chat with OpenClaw
+  - Debugging Synology Chat webhook routing
+title: "Synology Chat"
+---
+
+Synology Chat connects to OpenClaw through a webhook pair: a Synology Chat outgoing webhook posts inbound direct messages to the Gateway, and replies go back through a Synology Chat incoming webhook.
+
+Status: official plugin, installed separately. Direct messages only; text and URL-based file sends are supported.
+
+## Install
+
+```bash
+openclaw plugins install @openclaw/synology-chat
+```
+
+Local checkout (when running from a git repo):
+
+```bash
+openclaw plugins install ./path/to/local/synology-chat-plugin
+```
+
+Details: [Plugins](/tools/plugin)
+
+## Quick setup
+
+1. Install the plugin (above).
+2. In Synology Chat integrations:
+   - Create an incoming webhook and copy its URL.
+   - Create an outgoing webhook with your secret token.
+3. Point the outgoing webhook URL to your OpenClaw Gateway:
+   - `https://gateway-host/webhook/synology` by default.
+   - Or your custom `channels.synology-chat.webhookPath`.
+4. Finish setup in OpenClaw. Synology Chat appears in the same channel setup list in both flows:
+   - Guided: `openclaw onboard` or `openclaw channels add`
+   - Direct: `openclaw channels add --channel synology-chat --token <token> --url <incoming-webhook-url>`
+5. Restart the Gateway and send a DM to the Synology Chat bot.
+
+Webhook auth details:
+
+- OpenClaw accepts the outgoing webhook token from `body.token`, then
+  `?token=...`, then headers.
+- Accepted header forms:
+  - `x-synology-token`
+  - `x-webhook-token`
+  - `x-openclaw-token`
+  - `Authorization: Bearer <token>`
+- Empty or missing tokens fail closed.
+- Payloads may be `application/x-www-form-urlencoded` or `application/json`; `token`, `user_id`, and `text` are required.
+
+Minimal config:
+
+```json5
+{
+  channels: {
+    "synology-chat": {
+      enabled: true,
+      token: "synology-outgoing-token",
+      incomingUrl: "https://nas.example.com/webapi/entry.cgi?api=SYNO.Chat.External&method=incoming&version=2&token=...",
+      webhookPath: "/webhook/synology",
+      dmPolicy: "allowlist",
+      allowedUserIds: ["123456"],
+      rateLimitPerMinute: 30,
+      allowInsecureSsl: false,
+    },
+  },
+}
+```
+
+## Environment variables
+
+For the default account, you can use env vars:
+
+- `SYNOLOGY_CHAT_TOKEN`
+- `SYNOLOGY_CHAT_INCOMING_URL`
+- `SYNOLOGY_NAS_HOST`
+- `SYNOLOGY_ALLOWED_USER_IDS` (comma-separated)
+- `SYNOLOGY_RATE_LIMIT`
+- `OPENCLAW_BOT_NAME`
+
+Config values override env vars.
+
+`SYNOLOGY_CHAT_INCOMING_URL` and `SYNOLOGY_NAS_HOST` cannot be set from a workspace `.env`; see [Workspace `.env` files](/gateway/security#workspace-env-files).
+
+## DM policy and access control
+
+- Supported `dmPolicy` values: `allowlist` (default), `open`, and `disabled`. Synology Chat has no pairing flow; approve senders by adding their numeric Synology user IDs to `allowedUserIds`.
+- `allowedUserIds` accepts a list (or comma-separated string) of Synology user IDs.
+- In `allowlist` mode, an empty `allowedUserIds` list is treated as misconfiguration and the webhook route will not start.
+- `dmPolicy: "open"` allows public DMs only when `allowedUserIds` includes `"*"`; with restrictive entries, only matching users can chat. `open` with an empty `allowedUserIds` list also refuses to start the route.
+- `dmPolicy: "disabled"` blocks DMs.
+- Reply recipient binding stays on stable numeric `user_id` by default. `channels.synology-chat.dangerouslyAllowNameMatching: true` is break-glass compatibility mode that re-enables mutable username/nickname lookup for reply delivery.
+
+## Outbound delivery
+
+Use numeric Synology Chat user IDs as targets. The `synology-chat:`, `synology_chat:`, and `synology:` prefixes are accepted.
+
+Examples:
+
+```bash
+openclaw message send --channel synology-chat --target 123456 --message "Hello from OpenClaw"
+openclaw message send --channel synology-chat --target synology-chat:123456 --message "Hello again"
+openclaw message send --channel synology-chat --target synology:123456 --message "Short prefix"
+```
+
+Outbound text is chunked at 2000 characters. Media sends are supported by URL-based file delivery: the NAS downloads and attaches the file (max 32 MB). Outbound file URLs must use `http` or `https`, and private or otherwise blocked network targets are rejected before OpenClaw forwards the URL to the NAS webhook.
+
+## Multi-account
+
+Multiple Synology Chat accounts are supported under `channels.synology-chat.accounts`.
+Each account can override token, incoming URL, webhook path, DM policy, and limits.
+Direct-message sessions are isolated per account and user, so the same numeric `user_id`
+on two different Synology accounts does not share transcript state.
+Give each enabled account a distinct `webhookPath`. OpenClaw rejects duplicate exact paths
+and refuses to start named accounts that only inherit a shared webhook path in multi-account setups.
+If you intentionally need legacy inheritance for a named account, set
+`dangerouslyAllowInheritedWebhookPath: true` on that account or at `channels.synology-chat`,
+but duplicate exact paths are still rejected fail-closed. Prefer explicit per-account paths.
+
+```json5
+{
+  channels: {
+    "synology-chat": {
+      enabled: true,
+      accounts: {
+        default: {
+          token: "token-a",
+          incomingUrl: "https://nas-a.example.com/...token=...",
+        },
+        alerts: {
+          token: "token-b",
+          incomingUrl: "https://nas-b.example.com/...token=...",
+          webhookPath: "/webhook/synology-alerts",
+          dmPolicy: "allowlist",
+          allowedUserIds: ["987654"],
+        },
+      },
+    },
+  },
+}
+```
+
+## Security notes
+
+- Keep `token` secret and rotate it if leaked.
+- Keep `allowInsecureSsl: false` unless you explicitly trust a self-signed local NAS cert.
+- Inbound webhook requests are token-verified and rate-limited per sender (`rateLimitPerMinute`, default 30).
+- Invalid token checks use constant-time secret comparison and fail closed; repeated invalid-token attempts temporarily lock out the source IP.
+- Inbound message text is sanitized against known prompt-injection patterns and truncated at 4000 characters.
+- Prefer `dmPolicy: "allowlist"` for production.
+- Keep `dangerouslyAllowNameMatching` off unless you explicitly need legacy username-based reply delivery.
+- Keep `dangerouslyAllowInheritedWebhookPath` off unless you explicitly accept shared-path routing risk in a multi-account setup.
+
+## Troubleshooting
+
+- `Missing required fields (token, user_id, text)`:
+  - the outgoing webhook payload is missing one of the required fields
+  - if Synology sends the token in headers, make sure the gateway/proxy preserves those headers
+- `Invalid token`:
+  - the outgoing webhook secret does not match `channels.synology-chat.token`
+  - the request is hitting the wrong account/webhook path
+  - a reverse proxy stripped the token header before the request reached OpenClaw
+- `Rate limit exceeded`:
+  - too many invalid token attempts from the same source can temporarily lock that source out
+  - authenticated senders also have a separate per-user message rate limit
+- `Allowlist is empty. Configure allowedUserIds or use dmPolicy=open with allowedUserIds=["*"].`:
+  - `dmPolicy="allowlist"` is enabled but no users are configured
+- `User not authorized`:
+  - the sender's numeric `user_id` is not in `allowedUserIds`
+
+## Related
+
+- [Channels Overview](/channels) — all supported channels
+- [Groups](/channels/groups) — group chat behavior and mention gating
+- [Channel Routing](/channels/channel-routing) — session routing for messages
+- [Security](/gateway/security) — access model and hardening